Chair



Aug. 6, 1929.v w, s, FERRls 1,723,415

CHAIR Filed Nov. 5, 1924 Patented Auw. 6, 1929.

PATENT OFFICE.

y WILLIAM S. FERRIS, OF ELKHART, INDIANA.

CHAIR.

Application filed November This invention relates to improvement-s in chairs and it consists in the matters hereinafter describedy and more particularly pointed out in the appended claims. y n

The primary object ot the invention is to provide a chair wherein the seat is so mount ed as to be capable ot a limited lateral reciting or tiltingl movement with respect to the supporting standard or post.

A 'further object oit the invention is to 3ro-y vide an improved seat trame which is so mounted on. the swivelling post or stem that upon the occupant shitting his or her position or leaning to one side or the other of the seat, the same will rock or tilt in that direction under the weight of the occupant and aga-inst the action ol a resilient means which acts to return the seat to its normal position.

These objects ot the invention, as well the many advantages thereof, will moretully appear as I proceed with my speciication.'

ln the drawing Fio. l is a view in irontelevation oit a swiveiling 4chai r embodying my invention.

Fig, 2 is a bottom plan view of the seat `trame.

Fig. 3 is a detail vertical sectional View througl'i the connection between the seat frame and associated post or stem, the plane ot the section being indicated by the line 3-3 oit Fig. l; y

The chair as illustrated and ce' lbed herein is a metallic chair o t the swivelling type and is one especially adapted 'for use by niachine operators, billing machines,

nich as o'l linotype machines and other keyboard machines wherein the operator is called upon a tin/ies to n'ianipulate certain parts ot the inachine which are beyond the ordinary reach of the operator wnile sitting in the normal position-.in the chair. Such chairs are usually provided with casters and in some cases the chair is moved laterally on its casters by a movement of the ieet and body to reach the particular part olf the machine to be manipu lated. This method preferred to the stretching tor a long reach but it is tiresome, it wastes time, detracts the attention ot the ope 'ator from his or her work and in some cases result-'s in tipping the chair over.

The chair of my present invention is so constructed as to eliminate the above disadvantages and to roch or tilt laterally under the shitting or leaning of the occupant so that the 3, 1524. Serial No. 747,428.

parts of the machines operated and heretofore inaccessible in the ordinary reach, may be readily manipulated, and this without calll ing tor a tiresome elilort on behalf ot the operator.

Referring now in detail to that en'ibodin'ient olf the invention illustrated in the accompanying drawing l indicates the supporting standard or base olf the chair and 2 indicates the scat frame. The standard or base as herein shown comprises a plurality ol" legs 3, the top upright ends oit which are held together in a grouped relation by means ol" bracket members 4:-4 and a nut stop member 5. The bottom ends ot' said legs are suitably formed to increase the spread ot said legs and to said bottom ends are secured the usual casters 6. Between the top ends of said grouped legs and rest-ing on the member 5 is a nut 7 into whichr the bottom end ot a post 8 threaded in the usual manner providing a bearing for said post. n f

To the top end of said post is iixed the open rectangular iframe 9 of the seat 2. The seat trame is made 'up oil' edgewise arranged strap iron and includes front and rear members l() and ll and side members 12-12. Said side members are made integral with said rear member and deiine the depth ot said seat trame and the :trent member ll has rearwardly extending end portions 123-l3 which are suitably attached to the front ends of the side members 12e-12. The front and rear members and ll which are slightly bowed downwardly between their ends, are further connected together, near the end members l2-l2 by means ot llatwise arranged straps 14s-lll. Said straps engage or rest upon the top edges of said front and rear members and have downwardly bent end extensions 1:5-15 which are preferably riveted to said iront and rear end members. Resting upon said straps lll-lst is a cushioned seat 16 and operatively Connected to the side members 12-12 is an adjustable back rest 17`which need not be described in -further detail as it forms no particular part oil? the present invention.

Incorporated in the seat frame 9 are front and rear substantially V-shaped brace bars 12B-1S. Each brace bar has angularly disposed side members lSa-lSa which extends substantially radial 'from the center of the seat frame as defined by the post 8 and the outer ends thereof have ears 19-19 which are riveted to the front and rear members l() and ll near the seatsupporting members M ll. The inner ends of the members 18a-18a are connected together by means of parts 220 which, while spaced a suitable distance upon each side of the post 8, are parallel with the frontand rear members l and ll of the seat frame.

Interposed between said parts 20-20 is a transversely extending channel member 2l which includes a top web Q2, front and rear flanges 23h23, each with an inturned extension 24, the web 22 being spaced a slight distance below the bottom of the seat 16. `Within said channel member is located a fiat rectangular lock 25, which engages at its front and rear with the flanges .Q3-23 of said channel member. Said block rests at its bottom upon the flange extensions 2%-24- of the channel. and is of a thickness less than Jrhe height of said channel so as to leave a space betwen it andthe web of said channel member. In said block is provided a hole 27 to receive the top end of the post 8, a bolt 2S passing' through the parts QO-QO. flanges 23-23, block 25 and post S and operatively connecting said parts together. A nut Q9 is 'associatedL with said bolt.

indicates a dat resilientI or spring bar which extends parallel with but midway between the front and rear members of the seat frame. Said spring bar extends through the space 26 between the block 25 and the web Q2 of the channel member 2l and engages at its ends with the underside of the members 14-14, said bar being slotted near its ends as at 31 for the passage of bolts 32 and associated nuts which secures said bar ends to said members 14.

lWhen the chair is occupied, by shifting the weight of the body by leaning` toward one side or the other of the seat frame, said frame will rock or tilt about the bolt 28 and will flex one end the spring bar 30 downwardly and the other end upwardly, the rocking or tilting movement being relatively short and limited by the engagement of the lateral ends of the channel web Q2 with the bottom of the chair seat. As soon as the weight of the body is again shifted to the normal position upon the seat it, of course, instantly returns to its normal horizontal position.

My improved chair possesses many advantages. In actual use by keyboard machine operators, time and effort are saved in malting the reach often times required in opera-ting such machines as it eliminates the necessity of shifting the entire chair'to one side or the other of the normal position it occupies with reference to the machine being operated.

Said lateral tilting of the seat frame in no manner interferes with the intended swivelling action of the seat. The seat frame and part-s associated therewith are light in weight, yet strong and rif-rid and may be produced at a relatively low cost ybecause machine and pattern work is reduced to a minimum and said frames may be easily assembled by unsltilled labor. Y

lhile in describing my invention, I have referred to certain details of construction, form and arrangement of parts, the same is for the purpose of illustration only and, therefore, I do not wish to be limited thereto except as may be pointed out in the appended claims.

I claim as my invention:

l. A chair embodying therein, a rotatably mounted post, a rectangular seat frame, a block on the top end of the post, a channel member connected to said seat frame and in which said block is arranged, means pivotally connecting said block, post and channel member together and a spring bar interposed at its middle between said block and channel and operatively connected at its ends to said seat frame.

2. chair embodying therein, a rectangular seat frame, brace bars forming a part of said frame and having parts arranged near the center of the seat frame, a channel member arranged between said parts, a rotatably mounted post, a bloclt on the top end thereof and arranged in said channel, a pivot member connecting' said block, channel member and .f

seat frame together and a fiat spring bar having its middle parts interposed between said channel member and block and operatively connected at its ends to said seat frame.

3. A; chair embodying therein a post, a seat frame including parts arranged near the center thereof and parallel with the front and rear of the seat frame, a flat strap at each end of the seat frame, a downwardly 'facing channel member disposed upon the top of the post, means parallel with said straps for pivotally connecting the central parts of the seat frame to said post for a laterally tilting movement, a spring bar engaged with its midportion between the top of the post and said channel member and means providing` a screw and slot connection between the ends of said spring bar and said straps to provide a limited guided movement therebetween, said spring bar acting to resist the lateral tilting of the seat frame on the top end of the post. Y

In testimony whereof, I have hereunto set my hand, this 28th day of Oct., 1924.

IVILLIAM S. FERRIS.

llO 

